说明：  设计并调试一学生成绩管理系统，C#作为前台开发工具，Access完成后台数据库的管理。创建学生成绩管理系统所需的表，实现对学生成绩、课程、学生基本信息进行录入、修改、删除、查询的功能；其中查询应完成模糊查询和精确查询。数据库
(Design and commissioning of a student performance management system, C# development tool as a front, Access to complete back-end database management. Student performance management system to create the required tables, to achieve student performance, curriculum, students basic information input, modify, delete, search functions fuzzy query where the query should be completed and accurate information. )